Heater



Nov. 21, 1933.

J. H. LONG HEATER Patented Nov. 21, 1933 UNITED STATES PATENT OFFICE,

HEATER I Joseph H. Long, Cleveland, Ohio- Application April'21, 1932.Serial No. 606,712

2 Claims.

This invention relates to heating apparatus and is an improvement overthe construction disclosed in my co-pending application filed November10, 1931, Serial No. 574,196 and my co-pending application filed March5,1932, Serial No.

An object of this invention is to provide a heater of the horizontaltype which is adapted to heat air, the air-entering the heater beingtaken from the room in which the heater is mounted or from a pointremote from the heater.

Another object of this invention is to provide a tubular air heaterwhich is so constructed as to make use of substantially all of theheating units so that no heat or the like will be wasted.

A further object of this invention is to provide a construction of thiskind which is exceedingly simple in construction so that it can bereadily and cheaply manufactured.

The above and various other objects and advantages of this inventionwill in part be described in and in part be understood from thefollowing detailed description of the present preferred embodiment, thesame being illustrated in the accompanying drawing, wherein:--

- Figure 1 is a vertical section taken substantially through the centerof a device constructed according to the preferred embodiment of thisinvention.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a fragmentary horizontal sectional view taken on the line3--3 of Figure 1.

Referring to the drawing wherein like numerals of reference designatecorresponding parts throughout the several views, the numeral 10designates generally a housing or outer shell comprising a bottom wall13, a front wall 14, a rear wall 15, and a top wall 16. This casing orjacket is made in substantially rectangular form and the front wall 14has a fire door ,1! hingedly secured thereto above the bottom 13 and anash door 18 below the fire door 17, so that ashes may be removed fromthe ash pit 19 disposed below grates 20 interposed between the firebox21 and the outer jacket 10.

ing 28 which communicates with the fire box 21 5 so that products ofcombustion may pass upwardly therethrough and into the combustionchamber 23 and outwardly-through a smoke pipe 29. An inner wall 30 isprovided for the combustion chamber 23 which is disposed inwardly. ofthe forward wall 14 of the outer jacket 10, thereby providing an intakechamber 31 which communicates with the atmosphere through a grating orintake member 32 disposed on each side of the A vertically disposed rearwall 33 extends from the bottom Wall 24 to the top wall 16 of the outerjacket 10 and is provided adjacent the upper end thereof with outletpassages 34 which communicate with the air chamber 35 disposed about theexterior of the inner jacket 23 and within the outer jacket 10. The rearwall 33 of the inner jacket is disposed forwardly of the rear wall 15 ofthe outer jacket 10 so as to provide a mixing chamber 36 having outlets37 in each side 27 of the outer jacket 10 through which the heated airpasses into the room or the'like. Upper outlets 38' are-also provided inthe side walls 27 adjacent the upper ends thereof so as to permit thepassage of all heated air within this mixing chamber 36 outwardlythereof into the atmosphere. a r

"-A plurality of heater tubes 39 are secured at one end to the forwardwall 30 and at the opposite end to the rear wall 33, and these tubes 39extend through the combustion chamber 23, and are disposed in an upwardinclination so that the heated air disposed therein will readily fiowupwardly therethrough through the intake chamber 31 to the mixingchamber 36.

In order to provide a tortuous passage for the products of combustionwithin the combustion chamber 23, I have provided a plurality of baffiesor plate members, one of which is secured to the forward wall 30 and isdesignated 40, and another designated 41 is secured to the rear wall 33in a position above the lower baffle 40. Preferably, these baflles aredisposed intermediate pairs of series of heater tubes 39 so as todeflect the heat within the combustion chamber 23 and cause this heat tobe exhausted to a substantial degree within this combustion chamber 23,thereby heating the walls of the combustion chamber 23 and the surfaceof the heater tubes 39. In this manner, not only the air in the tubes 39will become heated, but the air disposed about the inner casing 23 willbe heated, and this air will flow upwardly from an intake port 42 in theforward wall 15 adjacent the bottom 13 and about the outer surface ofthe jacket 23 and through the outlets 34 into the mixing chamber 36,from which point the heated air passes outwardly through the outletports 37 and 38 in the side walls 27.

Through the provision of a heater as disclosed, it is not necessary, inorder to obtain a flow of air through the horizontal heater, to use aforcing means in the form of a fan or the like within the intake chamber31.

A front door 43 is hingedly secured to the forwardwall 14 above the-firebox 21 so as to permit' access to the inner jacket 23 for cleaning outthe intake chamber 31 and the tubes 39. A rear door 44 is secured to therear wall 15 in the same manner as the front door 43, permitting accessto the mixing chamber 36 and to clean out the rear end of the tubes 39.

In the use and operation of this device, the

jacket 10 may be disposed in a room or portion of a building tobe heatedand the desired medium, either coalor other heating medium, placed inthe forward and lower portion of the outer casing 10 beneath the chamber23 so that hot air willpass upwardly through the outlet 28 and into thechamber 23.

If desired, pipes or conduits may be connected to the outlets 37 and 38and in like manner, the cold air entering the intakeports 32 may beconducted thereto by means .ofsuitable conduits or the likecommunicating with the atmosphere at a point remote from the heater. Inthis manner, the heater may be mounted in the cellar or lower portion ofa building and the hot air conducted to the desired portions of thebuilding through conventional hot air conduits. The hot gases passingout through the opening 28 will enter the combustion chamber 23 andstrike the lower baffle or partition 40 and pass about the rear end ofthis baflle, which rear end'is disposed forwardly of the rear wall 33.Rising upwardly, as

shown by arrows, the hot gases will pass between the'bafiies 40 811C141,and be directed forwardly and about the forward end of-the upper baffle41, the upper baffle 41 having the forward end thereof disposedrearwardly of the front wall 30.

From this point, the hot gases will pass upwardas will the jacket 23,and the air will be drawn upwardly through the heater tubes 39 and inlike manner, the air about the innet jacket 23 will be heated and thisair will rise within the outer jacket '10 and pass out through the ports34 and 38, the air first entering the chamber between the two jacketsthrough the intake ports 42.

It is, of course, understood that various changes and modifications maybe made in the details of construction and design of the abovespecifically described embodiment of this invention without departingfrom the spirit thereof, such changes and modifications being restrictedonly by the scope of the following claims.

What is claimed is:

1. A heater as set forth comprising an outer jacket, a fuelburning meansin the jacket adjacent one end, a horizontally disposed combustionchamber within the jacket, said chamber having the walls thereof spacedfrom the walls of the jacket to provide an air heating chamber, theforward end wall of the combustion chamber being spaced inwardly fromthe forward wall of the jacket to provide an intake chamber, the bottomwall of which constitutes the top of the fuel burning means, a pluralityof longitudinally extending upwardly inclined heater tubes extendingthrough the combustion chamber and communicating at one end with theintake chamber, and an outlet chamber within the outer jacketcommunicating with the rear end of said heater tubes, said outer jackethaving outlet ports in the side walls thereof communicating with theoutlet chamber to permit the heated air to pass outwardly into theatmosphere.

2. A'heater as set forth. comprising an outer jacket, a horizontallydisposed combustion chamber within the jacket, a fuel burning meanswithin the outer jacket and communicating with the combustion chamber, aplurality of staggered baffle plates mounted within the combustionchamber to provide a tortuous passage for the products of combustion, asmoke pipe connected to the combustion chamber and extending through theouter jacket, a plurality ofheater tubes extending longitudinallythrough the combustion chamber and inclined upwardly from the forward tothe rear end of the combustion chamber, said combustion chamber havingthe forward and rear ends thereof disposed inwardly of the adjacent endsof the outer jacket whereby to provide an'intake chamber and an outletchamber respectively; the bottom wall of the intake chamber'extendingentirely across the fuel burning means, and doors carried by the outerjacket to permit entrance into said latter chambers.

JOSEPH H. LONG.

